CN109036279A - Array substrate, driving method, organic light emitting display panel and display device - Google Patents

Array substrate, driving method, organic light emitting display panel and display device Download PDF

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Publication number
CN109036279A
CN109036279A CN201811215357.6A CN201811215357A CN109036279A CN 109036279 A CN109036279 A CN 109036279A CN 201811215357 A CN201811215357 A CN 201811215357A CN 109036279 A CN109036279 A CN 109036279A
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China
Prior art keywords
transistor
pole
luminescent device
signal
line
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Granted
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CN201811215357.6A
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CN109036279B (en
Inventor
杨盛际
董学
陈小川
王辉
李胜男
郑增强
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BOE Technology Group Co Ltd
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BOE Technology Group Co Ltd
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Priority to CN201811215357.6A priority Critical patent/CN109036279B/en
Publication of CN109036279A publication Critical patent/CN109036279A/en
Priority to EP19861298.8A priority patent/EP3869491A4/en
Priority to PCT/CN2019/111072 priority patent/WO2020078326A1/en
Priority to US16/650,601 priority patent/US11462592B2/en
Priority to JP2020571763A priority patent/JP2022503421A/en
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
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    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3258—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the voltage across the light-emitting element
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3266—Details of drivers for scan electrodes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
    • H10K59/1213—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements the pixel elements being TFTs
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
    • H10K59/1216—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements the pixel elements being capacitors
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
    • G—PHYSICS
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0465—Improved aperture ratio, e.g. by size reduction of the pixel circuit, e.g. for improving the pixel density or the maximum displayable luminance or brightness
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    • G09G2300/00—Aspects of the constitution of display devices
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    • G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
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    • G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
    • G09G2300/0866—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes by means of changes in the pixel supply voltage
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    • G09G2310/0243—Details of the generation of driving signals
    • G09G2310/0245—Clearing or presetting the whole screen independently of waveforms, e.g. on power-on
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    • G09G2310/061—Details of flat display driving waveforms for resetting or blanking
    • G09G2310/063—Waveforms for resetting the whole screen at once

Abstract

The invention discloses a kind of array substrate, driving method, organic light emitting display panel and display devices, comprising: the pixel circuit that multiple luminescent devices in viewing area are connect with each luminescent device, and multiple voltage control circuits in non-display area；Wherein, at least two pixel circuits share a voltage control circuit in a line, so as to simplify the structure of each pixel circuit in viewing area, reduce the area occupied of pixel circuit in viewing area, so as to so that the more pixel circuits of viewing area setting and luminescent device, realize the organic light emitting display panel of high PPI.And, by voltage control circuit reseting controling signal control, initializing signal is exported to the first pole of driving transistor, corresponding luminescent device is controlled to reset, so as to avoid previous frame from loading on the influence that voltage shines to next frame on luminescent device when shining, and then improve ghost phenomena.

Description

Array substrate, driving method, organic light emitting display panel and display device
Technical field
The present invention relates to field of display technology, in particular to a kind of array substrate, driving method, organic light emitting display panel And display device.
Background technique
Organic Light Emitting Diode (Organic Light Emitting Diode, OLED) display panel is that current plate is aobvious One of the hot spot for showing device research field is compared with liquid crystal display (Liquid Crystal Display, LCD), and OLED is shown Device has many advantages, such as low low energy consumption, production cost, self-luminous, wide viewing angle and fast response time.However, existing OLED display surface It include multiple pixel units in plate, each pixel unit includes multiple sub-pixels, and each sub-pixel includes: an OLED and use In the luminous pixel circuit of driving OLED.Pixel circuit generally comprises multiple transistors and capacitor.Due to technique preparation precision Limitation, causes pixel circuit that can occupy biggish area in sub-pixel, to be unfavorable for realizing the OLED display panel of high PPI. Especially when OLED is set as Micro-OLED or Mini-OLED, biggish area is to height in pixel circuit occupancy sub-pixel The influence of the OLED display panel of PPI is particularly evident.
Summary of the invention
The embodiment of the present invention provides a kind of array substrate, driving method, organic light emitting display panel and display device, to Pixel circuit area occupied is reduced, high PPI display panel is advantageously implemented.
The embodiment of the invention provides a kind of array substrates, comprising: multiple luminescent devices in viewing area and with Each luminescent device corresponds the pixel circuit of coupling；The pixel circuit includes driving transistor；The array substrate Further include: multiple voltage control circuits in the non-display area of the array substrate；Wherein, at least two pixels in a line Circuit shares a voltage control circuit, and the voltage control for driving the first pole of transistor in one-row pixels circuit and sharing Second pole of circuit coupling processed, each driving transistor is coupled with the corresponding luminescent device；
The voltage control circuit is configured to respond to reseting controling signal, and initializing signal is exported to the driving First pole of transistor controls corresponding luminescent device and resets；It is and in response to LED control signal, the first power supply signal is defeated Out to the first pole of the driving transistor, to drive luminescent device to shine.
Optionally, in embodiments of the present invention, the array substrate further include: multiple pixel lists in viewing area Member, each pixel unit include multiple sub-pixels；Each sub-pixel includes: the luminescent device and a pixel Circuit.
Optionally, in embodiments of the present invention, the pixel circuit at least two sub-pixels adjacent in a line shares One voltage control circuit.
Optionally, in embodiments of the present invention, the voltage control electricity is shared with all pixels circuit in a line Road.
Optionally, in embodiments of the present invention, the voltage control circuit includes: first switch transistor and second switch Transistor；
The grid of the first switch transistor is used to receive the reseting controling signal, the first switch transistor For receiving the initializing signal, the second pole of the first switch transistor drives the of transistor with corresponding for first pole The coupling of one pole；
The grid of the second switch transistor is for receiving LED control signal, and the first of the second switch transistor Pole is for receiving first power supply signal, the second pole of the second switch transistor and the first of corresponding driving transistor Pole coupling.
Optionally, in embodiments of the present invention, the pixel circuit further include: third switching transistor and storage capacitance；
The grid of the third switching transistor is used to receive first grid scanning signal, the third switching transistor Signal, the second pole of the third switching transistor and the grid for driving transistor couple for receiving data for first pole；
The first end of the storage capacitance and it is described driving transistor grid couple, the second end of the storage capacitance with Ground terminal.
Optionally, in embodiments of the present invention, the pixel circuit further include: the 4th switching transistor；Wherein, described Four switching transistors are different from the type of the third switching transistor；
The grid of 4th switching transistor is used to receive second grid scanning signal, the 4th switching transistor First pole is for receiving the data-signal, the grid coupling of the second pole of the 4th switching transistor and the driving transistor It connects.
Optionally, in embodiments of the present invention, the pixel circuit further include: the 5th switching transistor；Wherein, the drive Second pole of dynamic transistor is coupled by the 5th switching transistor with corresponding luminescent device；
The grid of 5th switching transistor and reference signal end couple, the first pole of the 5th switching transistor with The second pole coupling of the driving transistor, the second pole of the 5th switching transistor is coupled with corresponding luminescent device.
Optionally, in embodiments of the present invention, the 5th switching transistor is P-type transistor, the reference signal end For ground terminal.
Optionally, in embodiments of the present invention, the array substrate further includes a plurality of LED control signal line, and with it is each The emission control circuit of the LED control signal line electrical connection；Wherein, described in LED control signal line and a line The voltage control circuit electrical connection of pixel circuit electrical connection, for described in the input of the voltage control circuit of electrical connection LED control signal.
Optionally, in embodiments of the present invention, the emission control circuit includes multiple cascade luminous shift registers, Each luminous shift register is corresponding with a LED control signal line to be electrically connected.
Optionally, in embodiments of the present invention, the array substrate further include: first power signal line；Wherein, institute It states the first power signal line to be electrically connected with all voltage control circuits, for inputting to voltage control circuit described in each First power supply signal；Alternatively,
The array substrate further include: a plurality of first power signal line；Wherein, a LED control signal line and one The voltage control circuit electrical connection of the row pixel circuit electrical connection, it is defeated for the voltage control circuit to electrical connection Enter first power supply signal.
Correspondingly, the embodiment of the invention also provides a kind of organic light emitting display panels, including the embodiment of the present invention to provide Array substrate.
Correspondingly, the embodiment of the invention also provides a kind of display devices, including organic hair provided in an embodiment of the present invention Light display panel.
Correspondingly, the embodiment of the invention also provides a kind of driving sides for array substrate provided in an embodiment of the present invention Method, comprising: shown in the time in a frame, the voltage control circuit and the pixel circuit are controlled, to drive luminescent device work Make；Wherein,
Drive the work of a line luminescent device, comprising:
Reset phase, the voltage control circuit export initializing signal to the drive in response to reseting controling signal First pole of dynamic transistor controls corresponding luminescent device and resets；
Data write phase outputs the data signal to the grid of the driving transistor；
Light emitting phase, the voltage control circuit export the first power supply signal to described in response to LED control signal The first pole of transistor is driven, driving luminescent device shines.
Optionally, in embodiments of the present invention, after the light emitting phase, driving a line luminescent device work is also It include: the non-luminescent stage；
In the non-luminescent stage, the voltage control circuit in response to LED control signal, by the first power supply signal with First pole of the driving transistor disconnects, and controls the luminescent device that corresponding pixel circuit is drivingly connected and stops shining.
Optionally, in embodiments of the present invention, it is shown in the time in a frame, drives every a line luminescent device work The non-luminescent stage opens in same time；Alternatively,
It is shown in the time in a frame, the non-luminescent stage of every a line luminescent device work is driven successively to open line by line.
Optionally, in embodiments of the present invention, after the light emitting phase, driving a line luminescent device work is also It include: the light modulation stage；The light modulation stage includes: at least one non-luminescent stage and at least one light emitting phase；Wherein, described Non-luminescent stage and the light emitting phase are successively alternately arranged；
In the non-luminescent stage, the voltage control circuit in response to LED control signal, by the first power supply signal with First pole of the driving transistor disconnects, and controls the luminescent device that corresponding pixel circuit is drivingly connected and stops shining；
In the light emitting phase, the voltage control circuit exports the first power supply signal in response to LED control signal To the first pole of the driving transistor, controls the luminescent device that corresponding pixel circuit is drivingly connected and shine.
Optionally, in embodiments of the present invention, it is shown in the time in a frame, drives every a line luminescent device work The light modulation stage opens in same time；Alternatively,
It is shown in the time in a frame, the light modulation stage of every a line luminescent device work is driven successively to open line by line.
The present invention has the beneficial effect that:
Array substrate, driving method, organic light emitting display panel and display device provided in an embodiment of the present invention, comprising: The pixel circuit that multiple luminescent devices in viewing area are connect with each luminescent device, and it is multiple in non-display area Voltage control circuit；Wherein, at least two pixel circuits share a voltage control circuit in a line, so as to simplify display The structure of each pixel circuit in area reduces the area occupied of pixel circuit in viewing area, so as to so that viewing area setting is more Pixel circuit and luminescent device, realize the organic light emitting display panel of high PPI.Also, it is being resetted by voltage control circuit The control for controlling signal exports initializing signal to the first pole of driving transistor, controls corresponding luminescent device and resets, from And the influence that voltage shines to next frame on luminescent device is loaded on when can shine to avoid previous frame, and then it is existing to improve ghost As.
Detailed description of the invention
Fig. 1 is one of the structural schematic diagram of array substrate provided in an embodiment of the present invention；
Fig. 2 is the second structural representation of array substrate provided in an embodiment of the present invention；
Fig. 3 a is the third structural representation of array substrate provided in an embodiment of the present invention；
Fig. 3 b is the four of the structural schematic diagram of array substrate provided in an embodiment of the present invention；
Fig. 4 is one of the concrete structure schematic diagram of array substrate provided in an embodiment of the present invention；
Fig. 5 is the two of the concrete structure schematic diagram of array substrate provided in an embodiment of the present invention；
Fig. 6 is the flow chart of driving method provided in an embodiment of the present invention；
Fig. 7 is one of circuit timing diagram provided in an embodiment of the present invention；
Fig. 8 is the two of circuit timing diagram provided in an embodiment of the present invention；
Fig. 9 is the three of circuit timing diagram provided in an embodiment of the present invention；
Figure 10 is the four of circuit timing diagram provided in an embodiment of the present invention；
Figure 11 is the five of circuit timing diagram provided in an embodiment of the present invention；
Figure 12 is the six of circuit timing diagram provided in an embodiment of the present invention；
Figure 13 is the seven of circuit timing diagram provided in an embodiment of the present invention.
Specific embodiment
In order to make the purpose of the present invention, the technical scheme and advantages are more clear, with reference to the accompanying drawing, to the embodiment of the present invention The array substrate of offer, driving method, organic light emitting display panel and display device specific embodiment carry out in detail It is bright.It should be appreciated that preferred embodiment disclosed below is only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention. And in the absence of conflict, the features in the embodiments and the embodiments of the present application can be combined with each other.It should be noted that It is that each layer film thickness and shape do not reflect the actual proportions of array substrate in attached drawing, purpose is in the schematically illustrate present invention Hold.And same or similar label indicates same or similar element or member with the same or similar functions from beginning to end Part.
The embodiment of the invention provides a kind of array substrates, as shown in Figure 1, may include: more in the AA of viewing area A luminescent device L and the pixel circuit 10 that coupling is corresponded with each luminescent device L；Pixel circuit 10 includes driving crystal Pipe.Also, array substrate can also include: the non-display area positioned at array substrate (in array substrate in addition to the AA of viewing area Region) in multiple voltage control circuits 20；Wherein, at least two pixel circuits 10 share a voltage control circuit in a line 20, and the first pole of transistor and shared voltage control circuit 20 is driven to couple in one-row pixels circuit 10, respectively drive crystal Second pole of pipe is coupled with corresponding luminescent device L.Voltage control circuit 20 is configured to respond to reseting controling signal RE, will Initializing signal Vinit is exported to the first pole of driving transistor, is controlled corresponding luminescent device L and is resetted；And in response to hair Optical control signal EM exports the first power supply signal VDD to the first pole of driving transistor, to drive luminescent device L to shine.
Above-mentioned array substrate provided in an embodiment of the present invention, comprising: multiple luminescent devices and each hair in viewing area The pixel circuit of optical device connection, and multiple voltage control circuits in non-display area；Wherein, at least two in a line Pixel circuit shares a voltage control circuit, so as to simplify the structure of each pixel circuit in viewing area, reduces viewing area The area occupied of middle pixel circuit, so as to so that the more pixel circuits of viewing area setting and luminescent device, realize high PPI's Organic light emitting display panel.Also, by voltage control circuit reseting controling signal control, by initializing signal export to The first pole for driving transistor controls corresponding luminescent device and resets, luminous so as to avoid previous frame from loading on when shining The influence that voltage shines to next frame on device, and then improve ghost phenomena.
In the specific implementation, in embodiments of the present invention, as shown in Figure 1, array substrate can also include: positioned at viewing area Multiple pixel unit PX in AA, each pixel unit PX include multiple sub-pixels 10；Each sub-pixel 10 a respectively include: hair Optical device L and a pixel circuit 10.Further, pixel unit PX may include the sub-pixel 10 of 3 different colours.This 3 A sub-pixel 10 can be respectively red sub-pixel, green sub-pixels and blue subpixels.Certainly, pixel unit also can wrap 4,5 or more sub-pixels are included, this needs to design determination according to actual application environment, is not limited thereto.
In the specific implementation, in embodiments of the present invention, can make at least two sub-pixels adjacent in same row Pixel circuit shares a voltage control circuit.Specifically, as shown in Figure 1, all pixels circuit 10 in same row can be made Share a voltage control circuit 20.Alternatively, the picture in two, three sub-pixels adjacent in same row or more can also be made Plain circuit shares a voltage control circuit, is not limited thereto.Display can be reduced by sharing voltage control circuit in this way The area occupied of pixel circuit in area.
In the specific implementation, in embodiments of the present invention, as shown in Fig. 2, array substrate can also include a plurality of luminous control Signal wire SEM processed, and the emission control circuit 30 being electrically connected with each LED control signal line SEM；Wherein, a light emitting control The voltage control circuit electrical connection that signal wire SEM is electrically connected with one-row pixels circuit, for the voltage control circuit to electrical connection Input LED control signal.Specifically, a LED control signal line SEM is electrically connected with the one-row pixels circuit in the AA of viewing area Second switch transistor M2 grid electrical connection.
In the specific implementation, in embodiments of the present invention, as best seen in figs. 3a and 3b, emission control circuit 30 may include Multiple cascade luminous shift register EOA, each luminous shift register EOA are corresponding with a LED control signal line SEM Electrical connection.Specifically, the luminous input signal end of the luminous shift register EOA of the first order is used for receiving frame light emission trigger signal, Distinguish the luminous shift register of upper level adjacent thereto in the luminous input signal end of remaining luminous shift register EOA at different levels The luminous output signal end of EOA is electrically connected, to realize the function to LED control signal line SEM input LED control signal.? In practical application, the structure for the shift register that shines is identical as existing structure, and therefore not to repeat here.
In the specific implementation, in embodiments of the present invention, as shown in Fig. 2 and Fig. 3 a, array substrate can also include: one First power signal line SVDD；Wherein, the first power signal line SVDD is electrically connected with all voltage control circuits, is used for each A voltage control circuit inputs the first power supply signal.Specifically, the first power signal line SVDD and all second switch crystal The first pole of pipe M2 is electrically connected.Also, the first power signal line SVDD can be set in non-display area, further decrease display The cabling quantity being arranged in area AA, so as to realize the organic light emitting display panel of high PPI.
In the specific implementation, in embodiments of the present invention, as shown in Figure 3b, array substrate can also include: a plurality of first (1≤m≤M, m and M are respectively integer to power signal line SVDD_m, and M represents the sum of the first power signal line, and Fig. 3 b is with M=4 For)；Wherein, the voltage control circuit electrical connection that a LED control signal line SVDD_m is electrically connected with one-row pixels circuit, For inputting the first power supply signal to the voltage control circuit of electrical connection.Specifically, LED control signal line SVDD_m with The first pole of all second switch transistor M2 in a line is electrically connected.Also, all LED control signal line SVDD_m can be with It is set in non-display area, further decreases the cabling quantity being arranged in the AA of viewing area, so as to realize organic hair of high PPI Light display panel.
In the specific implementation, in embodiments of the present invention, as shown in figs. 4 and 5, driving transistor M0 can be brilliant for N-type Body pipe can be using first end S as its source electrode when electric current flows to second end D by its first end S, and second end D is as its leakage Pole., can be using second end D as its source electrode when electric current flows to first end S by its second end D, first end S is as its drain electrode. Also, luminescent device L may include OLED.The anode of OLED in this way is electrically connected with the second end D of driving transistor M0, OLED's Cathode is electrically connected with second source end VSS.The voltage of second source end VSS is generally negative voltage or ground voltage VGND(generally 0V), the voltage of initializing signal may be set to be ground voltage VGND, it is not limited thereto.Wherein it is possible to which OLED is arranged For Micro-OLED or Mini-OLED, it is further advantageously implemented the organic light emitting display panel of high PPI in this way.
In the specific implementation, in embodiments of the present invention, as Fig. 4 and Fig. 5 (is with two pixel circuits for including in a line Example) shown in, voltage control circuit 20 may include: first switch transistor M1 and second switch transistor M2；Wherein, it first opens The grid of transistor M1 is closed for receiving reseting controling signal RE, the first pole of first switch transistor M1 is for receiving initialization Signal Vinit, the second pole of first switch transistor M1 are coupled with the first pole S of corresponding driving transistor M0.Second switch The grid of transistor M2 is for receiving LED control signal EM, and the first pole of second switch transistor M2 is for receiving the first power supply Signal VDD, the second pole of second switch transistor M2 are coupled with the first pole S of corresponding driving transistor M0.
In the specific implementation, as shown in figs. 4 and 5, first switch transistor M1 and second switch transistor M2 can be made Type it is different.For example, first switch transistor M1 is N-type transistor, second switch transistor M2 is P-type transistor.Alternatively, First switch transistor is P-type transistor, and second switch transistor is N-type transistor.It is of course also possible to make first switch crystal Pipe M1 is identical as the type of second switch transistor M2.In practical applications, it needs to design first according to actual application environment The type of switching transistor and second switch transistor, is not limited thereto.
In the specific implementation, in embodiments of the present invention, as shown in figs. 4 and 5, pixel circuit 10 can also include: Three switching transistor M3 and storage capacitance Cst；Wherein, the grid of third switching transistor M3 is for receiving first grid scanning letter Number S1, the first pole of third switching transistor M3 signal DA for receiving data, the second pole of third switching transistor M3 and drive The grid G coupling of dynamic transistor M0.The first end of storage capacitance Cst and the grid G of driving transistor M0 couple, storage capacitance The second end and ground terminal GND of Cst couples.
Further, in the specific implementation, in embodiments of the present invention, as shown in figs. 4 and 5, pixel circuit 10 may be used also To include: the 4th switching transistor M4；Wherein, the grid of the 4th switching transistor M4 is for receiving second grid scanning signal The second pole of S2, the first pole of the 4th switching transistor M4 signal DA for receiving data, the 4th switching transistor M4 and driving The grid G of transistor M0 couples.Also, the 4th switching transistor M4 is different from the type of third switching transistor M3.For example, the Three switching transistor M3 are N-type transistor, and the 4th switching transistor M4 is P-type transistor；Alternatively, third switching transistor M3 is P-type transistor, the 4th switching transistor M4 are N-type transistor.
In the specific implementation, in embodiments of the present invention, as shown in figure 5, pixel circuit 10 can also include: the 5th switch Transistor M5；Wherein, the second pole D of transistor M0 is driven to couple by the 5th switching transistor M5 with corresponding luminescent device L. Also, the grid of the 5th switching transistor M5 and reference signal end couple, and the first pole of the 5th switching transistor M5 and driving are brilliant The second pole D of body pipe M0 is coupled, and the second pole of the 5th switching transistor M5 is coupled with corresponding luminescent device L.Further, may be used To set P-type transistor for the 5th switching transistor M5, reference signal end is set as ground terminal GND.
Further, in the specific implementation, P-type transistor ends under the signal function of high level, in low level letter Number lower conducting of effect；N-type transistor is connected under the signal function of high level, ends under low level signal function.
It should be noted that above-mentioned switching transistor can be thin film transistor (TFT) (TFT, Thin Film Transistor), it is also possible to metal oxide semiconductor field effect tube (MOS, Metal Oxide Scmiconductor), It is not limited thereto.In specific implementation, the first pole of above-mentioned switching transistor can be made as its source electrode, the second pole is as it Drain electrode；Alternatively, the second pole, as its source electrode, the first pole is not limited thereto as its drain electrode.
Based on the same inventive concept, the embodiment of the invention also provides a kind of array substrates provided in an embodiment of the present invention Driving method may include: to show in the time in a frame, voltage control circuit and pixel circuit be controlled, to drive luminescent device Work.
In the specific implementation, as shown in fig. 6, driving a line luminescent device work, may include steps of:
S601, reset phase, voltage control circuit export initializing signal brilliant to driving in response to reseting controling signal First pole of body pipe controls corresponding luminescent device and resets；
S602, data write phase output the data signal to the grid of driving transistor；
S603, light emitting phase, voltage control circuit export the first power supply signal to driving in response to LED control signal First pole of transistor, driving luminescent device shine.
Below to drive a line luminescent device to work, and respectively by taking the structure of Fig. 4 and array substrate shown in fig. 5 as an example, Combined circuit timing diagram is explained the driving method of above-mentioned array substrate provided in an embodiment of the present invention.In described below with 1 indicates the signal of high level, and 0 indicates low level signal, it should be noted that 1 and 0 is logic level, merely to more The specific work process of the good explanation embodiment of the present invention, rather than it is applied to the grid of each switching transistor in the specific implementation On level.
Embodiment one,
By taking array substrate shown in Fig. 4 as an example, corresponding circuit timing diagram is as shown in Figure 7.Drive a line luminescent device work Make, may include: reset phase T1, data write phase T2, light emitting phase T3.
In reset phase T1, S1=0, S2=1, RE=1, EM=1.
Since EM=1, second switch transistor M2 end.Since S1=0, third switching transistor M3 are cut Only.Since S2=1, the 4th switching transistor M4 end.It, will since RE=1, first switch transistor M1 are connected Initializing signal Vinit is supplied to the first pole S of driving transistor M0.It should be noted that if driving is brilliant when previous frame is shown The grid G of body pipe M0 by storage capacitance Cst store be high gray data-signal (showing high gray), then drive crystal The voltage of the anode of the first pole S, the second pole D and luminescent device L of pipe M0 can be reset to ground voltage VGND.On if When one frame is shown, drive that the grid G of transistor M0 stored by storage capacitance Cst is that the data-signal of low ash rank (is shown Low ash rank), then drive the voltage of the first pole S of transistor M0 to be reset to ground voltage VGND, and electric current is by driving transistor The second pole D of M0 flows to its first pole S, and the voltage of the anode of the second pole D and luminescent device L is allowed to reset to VGND-Vth。 Wherein, VthRepresent the threshold voltage of driving transistor M0.Luminescent device is loaded on when can shine in this way to avoid previous frame to power on The influence to shine to next frame is pressed, and then improves ghost phenomena.
In data write phase T1, S1=1, S2=0, RE=0, EM=1.
Since EM=1, second switch transistor M2 end.Since RE=0, first switch transistor M1 are cut Only.Since S1=1, third switching transistor M3 are connected.Since S2=0, the 4th switching transistor M4 are connected.Conducting Third switching transistor M3 and the 4th switching transistor M4, data-signal DA can be supplied to driving transistor M0 grid G, to make the voltage V for driving the grid G data-signal of transistor M0DA, and stored by storage capacitance Cst.It needs Illustrate, in the voltage of data-signal DA voltage corresponding for high gray, the 4th switching transistor M4 for passing through p-type is connected Data-signal DA to be transferred to the grid G of driving transistor M0, can be opened to avoid the voltage of data-signal DA by the third of N-type Close the threshold voltage V of transistor M3th(M3)Influence.In the voltage of data-signal DA voltage corresponding for low ash rank, pass through N The third switching transistor M3 conducting of type, can be to avoid data data-signal DA to be transferred to the grid G for driving transistor M0 Threshold voltage V of the voltage of signal DA by the 4th switching transistor M4 of p-typeth(M4)Influence.It can be improved in this way and be input to drive Voltage range in the grid G of dynamic transistor M0.
In light emitting phase T3, S1=0, S2=1, RE=0, EM=0.
Since RE=0, first switch transistor M1 end.Since S1=0, third switching transistor M3 are cut Only.Since S2=1, the 4th switching transistor M4 end.It, will since EM=1, second switch transistor M2 are connected First power supply signal VDD is supplied to the first pole S of driving transistor M0, makes the first power supply signal of voltage VDD of its first pole S Voltage Vdd.Since driving transistor M0 work is in a saturated state, according to saturation state current characteristics it is found that flowing through driving crystalline substance Body pipe M0 and operating current I for driving luminescent device L luminous meets formula: I=K (VGD-Vth)2=K (VDA-VD-Vth)2, Wherein, VDThe voltage of the second pole D of driving transistor M0 is represented, K is structural parameters, this numerical value is relatively stable in identical structure, Constant can be can be regarded as.In this way, operating current I passes through second switch transistor M2 and driving transistor by the first power supply signal VDD M0 flows to luminescent device L, to drive luminescent device L to shine.It should be noted that driving transistor M0 work makes in saturation region Obtain the voltage V of its second pole DDIt can be approximated to be VDA-Vth, but really VD<VDA-Vth's.It in this way can be brilliant by control driving The voltage of the grid G of body pipe M0 changes VDVoltage, to change the voltage difference between the two poles of the earth luminescent device L, and then change hair Optical device L's shines.
Embodiment two,
The structural schematic diagram of the corresponding array substrate of the present embodiment is as shown in figure 4, it is directed to the embodiment party in embodiment one Formula is deformed.In place of the difference for only illustrating the present embodiment and embodiment one below, therefore not to repeat here for something in common.? When it is implemented, as shown in figure 8, driving a line luminescent device work can also include: non-luminescent rank after light emitting phase T3 Section T4；Wherein, in non-luminescent stage T4, voltage control circuit by the first power supply signal and drives in response to LED control signal EM First pole of dynamic transistor disconnects, and controls the luminescent device that corresponding pixel circuit is drivingly connected and stops shining.
Specifically, corresponding circuit timing diagram is as shown in Figure 8.The work of a line luminescent device is driven, may include: resetting rank Section T1, data write phase T2, light emitting phase T3 and non-luminescent stage T4.Wherein, reset phase T1, data write phase T2, light emitting phase T3 may refer to embodiment one, and therefore not to repeat here.
In non-luminescent stage T4, S1=0, S2=1, RE=0, EM=1.Due to RE=0, first switch transistor M1 Cut-off.Since S1=0, third switching transistor M3 end.Since S2=1, the 4th switching transistor M4 end.By In EM=0, therefore second switch transistor M2 ends.In this way, the first power supply signal VDD no longer passes through second switch transistor M2 Luminescent device L is flowed to driving transistor M0, so as to so that driving luminescent device L stops shining.It can further keep away in this way Exempt to load on the influence that the voltage on the anode of luminescent device L shines to next frame when previous frame shines, and then it is existing to improve ghost As.
Embodiment three,
In the specific implementation, as shown in figure 9, can show in time Frame in a frame, make to drive every a line luminescent device The non-luminescent stage T4 of work is opened in same time t0.
Specifically, general array substrate may include K row pixel unit, and K is positive integer.Gate_k (1≤k≤K, and be Integer) represent each signal that pixel circuit works in driving row k pixel unit.It is shown in time Frame in a frame, Ke Yitong Cross driving method line by line, driving pixel circuit work, in hair of the driving the first row pixel unit into last line pixel unit After optical device shines, then the luminescent device that controls in every one-row pixels unit be simultaneously stopped it is luminous.For example, in frame display Between Frame when a length of 11.1ms when, non-luminescent stage T4 can be made to occupy 2ms, remaining 9.1ms is driving the first row pixel list The luminous duration of pixel circuit of the member into last line pixel unit.
Example IV,
In the specific implementation, as shown in Figure 10, it is shown in time Frame in a frame, every a line luminescent device is driven to work Non-luminescent stage T4 successively open line by line.It shows in time Frame, can be being driven by driving method line by line in a frame Pixel circuit of the first row pixel unit into last line pixel unit successively works.
Specifically, it after the luminescent device in driving the first row pixel unit shines, is turned on into time t_1 non- Light emitting phase T4, the second switch transistor cutoff of control the first row pixel circuit electrical connection, to control the first row pixel unit In luminescent device stop shine.After driving the luminescent device in the second row pixel unit to shine, opened in time t_2 Into non-luminescent stage T4, the second switch transistor cutoff of the second row pixel circuit electrical connection is controlled, to control the second row picture Luminescent device in plain unit stops shining.After the luminescent device in driving line k pixel unit shines, in time t_K When turn on into non-luminescent stage T4, the second switch transistor cutoff of control line k pixel circuit electrical connection, to control K Luminescent device in row pixel unit stops shining.Remaining and so on, therefore not to repeat here.
Embodiment five,
The structural schematic diagram of the corresponding array substrate of the present embodiment is as shown in figure 4, it is directed to the embodiment party in embodiment one Formula is deformed.In place of the difference for only illustrating the present embodiment and embodiment one below, therefore not to repeat here for something in common.
In the specific implementation, as shown in figure 11, after light emitting phase T3, driving a line luminescent device work can also be wrapped It includes: light modulation stage TS.Light modulation stage TS may include: that (1≤x≤X, x and X's at least one non-luminescent stage TS1_x are positive Number, X represent the sum in the non-luminescent stage that the light modulation stage has, and Figure 11 is by taking X=2 as an example) and at least one light emitting phase TS2_y (1≤y≤Y, y and Y are positive number, and Y represents the sum for the light emitting phase that the light modulation stage has, and Figure 11 is by taking Y=2 as an example)；Wherein, Non-luminescent stage TS1_x and light emitting phase TS2_y are successively alternately arranged.Wherein, X can be set to 1,2,3 etc., and Y can be set It is 1,2,3 etc., certainly, in practical applications, requirement of the different application environment to the brightness of luminescent device is different, therefore dims rank The specific implementation of the quantity of non-luminescent stage and light emitting phase can design determination according to actual application environment in section, herein not It limits.
Specifically, in non-luminescent stage TS1_x, voltage control circuit believes the first power supply in response to LED control signal It number is disconnected with the first pole of driving transistor, controls the luminescent device that corresponding pixel circuit is drivingly connected and stop shining；
In light emitting phase TS2_y, voltage control circuit exports the first power supply signal to drive in response to LED control signal First pole of dynamic transistor controls the luminescent device that corresponding pixel circuit is drivingly connected and shines.It can be adjusted in this way by setting Photophase, so as to effectively control the brightness of luminescent device.
Specifically, as shown in figure 11, light modulation stage TS may include: the non-luminescent stage TS1_1 set gradually, shine rank Section TS2_1, non-luminescent stage TS1_2, light emitting phase TS2_2.Alternatively, light modulation the stage also may include set gradually it is non-luminescent Stage, light emitting phase, non-luminescent stage.It is not limited thereto.
Below by taking Fig. 4 as an example, the course of work that the circuit timing diagram in conjunction with shown in Figure 11 exchanges photophase TS is illustrated. In non-luminescent stage TS1_1, S1=0, S2=1, RE=0, EM=1.Since RE=0, first switch transistor M1 end. Since S1=0, third switching transistor M3 end.Since S2=1, the 4th switching transistor M4 end.Due to EM =0, therefore second switch transistor M2 ends.In this way, the first power supply signal no longer passes through second switch transistor M2 and driving Transistor M0 flows to luminescent device L, to make that luminescent device L is driven to stop shining.
In light emitting phase TS2_1, S1=0, S2=1, RE=0, EM=0.Due to RE=0, first switch transistor M1 cut-off.Since S1=0, third switching transistor M3 end.Since S2=1, the 4th switching transistor M4 end. Since EM=1, second switch transistor M2 are connected, the first power supply signal VDD is supplied to the of driving transistor M0 One pole S.To make operating current I pass through second switch transistor M2 and driving transistor M0 flow direction by the first power supply signal VDD Luminescent device L, to drive luminescent device L to shine.
In non-luminescent stage TS1_2, S1=0, S2=1, RE=0, EM=1.Due to RE=0, first switch crystal Pipe M1 cut-off.Since S1=0, third switching transistor M3 end.Since S2=1, the 4th switching transistor M4 are cut Only.Since EM=0, second switch transistor M2 end.In this way, the first power supply signal no longer passes through second switch transistor M2 and driving transistor M0 flow to luminescent device L, to make that luminescent device L is driven to stop shining.
In light emitting phase TS2_2, S1=0, S2=1, RE=0, EM=0.Due to RE=0, first switch transistor M1 cut-off.Since S1=0, third switching transistor M3 end.Since S2=1, the 4th switching transistor M4 end. Since EM=1, second switch transistor M2 are connected, the first power supply signal VDD is supplied to the of driving transistor M0 One pole S.To make operating current I pass through second switch transistor M2 and driving transistor M0 flow direction by the first power supply signal VDD Luminescent device L, to drive luminescent device L to shine.
Embodiment six,
In the specific implementation, as shown in figure 12, it is shown in time Frame in a frame, every a line luminescent device is driven to work Light modulation stage TS same time ts0 open.
Specifically, it is shown in time Frame in a frame, pixel circuit work can be driven by driving method line by line, After driving luminescent device of the first row pixel unit into last line pixel unit to shine, then control every one-row pixels unit In luminescent device enter light modulation stage TS simultaneously in time ts0.
Embodiment seven,
In the specific implementation, as shown in figure 13, it is shown in time Frame in a frame, every a line luminescent device is driven to work Light modulation stage TS successively open line by line.
Specifically, it is shown in time Frame in a frame, it can be by driving method line by line, in driving the first row pixel list Pixel circuit of the member into last line pixel unit successively works.Specifically, shining in driving the first row pixel unit After device shines, light modulation stage TS is turned on into time ts_1.Driving the luminescent device in the second row pixel unit After shining, light modulation stage TS is turned on into time ts_2.Driving line k pixel unit in luminescent device shine with Afterwards, light modulation stage TS is turned on into time t_K.Remaining and so on, therefore not to repeat here.
Embodiment eight,
Further, the structure of array substrate shown in fig. 5 compare Fig. 4, be only driving transistor M0 the second pole D with The 5th switching transistor M5 of p-type is provided between the anode of luminescent device L.5th switching transistor M0 can play comparison Spend the effect of clamp.Specifically, when the voltage of data-signal DA is the corresponding voltage of high gray (such as high voltage), that is, exist When showing high gray picture, since the grid of the 5th switching transistor M5 connects ground terminal GND, so that the 5th switching transistor M5 Can be in the open state under the control of the voltage of the second pole D of the voltage and driving transistor M0 of ground terminal GND, to make V is applied on the anode of luminescent device LDA-Vth, so that the maximum brightness of luminescent device L is unaffected.In data When the voltage of signal DA is low ash rank (such as low-voltage) corresponding voltage, i.e., when showing low grey menu, open due to the 5th The grid for closing transistor M5 connects ground terminal GND, so that the 5th switching transistor M5 is not enough to voltage and drive in ground terminal GND It is connected under the control of the voltage of the second pole D of dynamic transistor M0, it is non-so as to the electric current that flows through the 5th switching transistor M5 It is often small, open circuit between the second pole D and luminescent device L of driving transistor M0 can be equivalent to, so that luminescent device L's is bright Degree can reach super low level.In this way according to contrast formula it can be concluded that, the contrast of luminescent device L in such a mode It is minimum.
Also, the structure of array substrate shown in fig. 5 can be respectively referring to embodiment one in the course of work in other stages To embodiment seven, therefore not to repeat here.
Based on the same inventive concept, the embodiment of the invention also provides a kind of organic light emitting display panels, including the present invention The array substrate that embodiment provides.The principle that the organic light emitting display panel solves the problems, such as is similar to aforementioned array substrate, therefore The implementation of the organic light emitting display panel may refer to the implementation of aforementioned array substrate, and repeating place, details are not described herein.
Based on the same inventive concept, the embodiment of the invention also provides a kind of display devices, including the embodiment of the present invention to mention The above-mentioned organic light emitting display panel supplied.The display device can be with are as follows: mobile phone, tablet computer, television set, display, notebook Any products or components having a display function such as computer, Digital Frame, navigator.Other for the display device must can not Few component part is it will be apparent to an ordinarily skilled person in the art that having, and this will not be repeated here, also be should not be used as pair Limitation of the invention.The implementation of the display device may refer to the embodiment of above-mentioned organic light emitting display panel, repeat place not It repeats again.
Array substrate, driving method, organic light emitting display panel and display device provided in an embodiment of the present invention, comprising: The pixel circuit that multiple luminescent devices in viewing area are connect with each luminescent device, and it is multiple in non-display area Voltage control circuit；Wherein, at least two pixel circuits share a voltage control circuit in a line, so as to simplify display The structure of each pixel circuit in area reduces the area occupied of pixel circuit in viewing area, so as to so that viewing area setting is more Pixel circuit and luminescent device, realize the organic light emitting display panel of high PPI.Also, it is being resetted by voltage control circuit The control for controlling signal exports initializing signal to the first pole of driving transistor, controls corresponding luminescent device and resets, from And the influence that voltage shines to next frame on luminescent device is loaded on when can shine to avoid previous frame, and then it is existing to improve ghost As.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims (19)

1. a kind of array substrate, comprising: multiple luminescent devices in viewing area and a pair of with each luminescent device one The pixel circuit that should be coupled；The pixel circuit includes driving transistor；It is characterized in that, the array substrate further include: position Multiple voltage control circuits in the non-display area of the array substrate；Wherein, at least two pixel circuits share in a line One voltage control circuit, and the voltage control circuit coupling for driving the first pole of transistor in one-row pixels circuit and sharing It connects, the second pole of each driving transistor is coupled with the corresponding luminescent device；
The voltage control circuit is configured to respond to reseting controling signal, and initializing signal is exported to the driving crystal First pole of pipe controls corresponding luminescent device and resets；And in response to LED control signal, by the first power supply signal export to First pole of the driving transistor, to drive luminescent device to shine.
2. array substrate as described in claim 1, which is characterized in that the array substrate further include: in viewing area Multiple pixel units, each pixel unit include multiple sub-pixels；Each sub-pixel includes: the luminescent device and one A pixel circuit.
3. array substrate as claimed in claim 2, which is characterized in that the picture at least two sub-pixels adjacent in a line Plain circuit shares a voltage control circuit.
4. array substrate as claimed in claim 3, which is characterized in that shared described in one with all pixels circuit in a line Voltage control circuit.
5. array substrate according to any one of claims 1-4, which is characterized in that the voltage control circuit includes: first Switching transistor and second switch transistor；
The grid of the first switch transistor is for receiving the reseting controling signal, and the first of the first switch transistor Pole is for receiving the initializing signal, the first pole of the second pole of the first switch transistor and corresponding driving transistor Coupling；
The grid of the second switch transistor is used for receiving LED control signal, the first pole of the second switch transistor In reception first power supply signal, the first pole coupling of the second pole of the second switch transistor and corresponding driving transistor It connects.
6. array substrate according to any one of claims 1-4, which is characterized in that the pixel circuit further include: third is opened Close transistor and storage capacitance；
The grid of the third switching transistor is for receiving first grid scanning signal, and the first of the third switching transistor Signal, the second pole of the third switching transistor and the grid for driving transistor couple for receiving data for pole；
The grid of the first end of the storage capacitance and the driving transistor couples, the second end of the storage capacitance and ground connection End coupling.
7. array substrate as claimed in claim 6, which is characterized in that the pixel circuit further include: the 4th switching transistor； Wherein, the 4th switching transistor is different from the type of the third switching transistor；
The grid of 4th switching transistor is for receiving second grid scanning signal, and the first of the 4th switching transistor Pole is for receiving the data-signal, the grid coupling of the second pole of the 4th switching transistor and the driving transistor.
8. array substrate according to any one of claims 1-4, which is characterized in that the pixel circuit further include: the 5th opens Close transistor；Wherein, the second pole of the driving transistor passes through the 5th switching transistor and corresponding luminescent device coupling It connects；
The grid of 5th switching transistor and reference signal end couple, the first pole of the 5th switching transistor with it is described The second pole coupling of transistor is driven, the second pole of the 5th switching transistor is coupled with corresponding luminescent device.
9. array substrate as claimed in claim 8, which is characterized in that the 5th switching transistor is P-type transistor, described Reference signal end is ground terminal.
10. array substrate according to any one of claims 1-4, which is characterized in that the array substrate further includes a plurality of hair Optical control signal line, and the emission control circuit being electrically connected with each LED control signal line；Wherein, one it is described shine The voltage control circuit electrical connection that control signal wire is electrically connected with pixel circuit described in a line, for described in electrical connection Voltage control circuit inputs the LED control signal.
11. array substrate as claimed in claim 10, which is characterized in that the emission control circuit includes multiple cascade hairs Light shift register, each luminous shift register is corresponding with a LED control signal line to be electrically connected.
12. array substrate as claimed in claim 10, which is characterized in that the array substrate further include: first power supply Signal wire；Wherein, first power signal line is electrically connected with all voltage control circuits, is used for electricity described in each Control circuit is pressed to input first power supply signal；Alternatively,
The array substrate further include: a plurality of first power signal line；Wherein, a LED control signal line and a line institute The voltage control circuit electrical connection for stating pixel circuit electrical connection, for inputting institute to the voltage control circuit of electrical connection State the first power supply signal.
13. a kind of organic light emitting display panel, which is characterized in that including the described in any item array bases of such as claim 1-12 Plate.
14. a kind of display device, which is characterized in that including organic light emitting display panel as claimed in claim 13.
15. a kind of driving method for such as described in any item array substrates of claim 1-12 characterized by comprising It is shown in the time in a frame, the voltage control circuit and the pixel circuit is controlled, to drive luminescent device to work；Wherein,
Drive the work of a line luminescent device, comprising:
Reset phase, the voltage control circuit export initializing signal brilliant to the driving in response to reseting controling signal First pole of body pipe controls corresponding luminescent device and resets；
Data write phase outputs the data signal to the grid of the driving transistor；
Light emitting phase, the voltage control circuit export the first power supply signal to the driving in response to LED control signal First pole of transistor, driving luminescent device shine.
16. driving method as claimed in claim 15, which is characterized in that after the light emitting phase, described driving a line Luminescent device work further include: non-luminescent stage；
In the non-luminescent stage, the voltage control circuit in response to LED control signal, by the first power supply signal with it is described It drives the first pole of transistor to disconnect, controls the luminescent device that corresponding pixel circuit is drivingly connected and stop shining.
17. driving method as claimed in claim 16, which is characterized in that shown in the time in a frame, drive every a line The non-luminescent stage of luminescent device work opens in same time；Alternatively,
It is shown in the time in a frame, the non-luminescent stage of every a line luminescent device work is driven successively to open line by line.
18. driving method as claimed in claim 15, which is characterized in that after the light emitting phase, described driving a line Luminescent device work further include: light modulation stage；The light modulation stage includes: at least one non-luminescent stage and at least one shines Stage；Wherein, the non-luminescent stage and the light emitting phase are successively alternately arranged；
In the non-luminescent stage, the voltage control circuit in response to LED control signal, by the first power supply signal with it is described It drives the first pole of transistor to disconnect, controls the luminescent device that corresponding pixel circuit is drivingly connected and stop shining；
In the light emitting phase, the voltage control circuit exports the first power supply signal to institute in response to LED control signal The first pole for stating driving transistor controls the luminescent device that corresponding pixel circuit is drivingly connected and shines.
19. driving method as claimed in claim 18, which is characterized in that shown in the time in a frame, drive every a line The light modulation stage of luminescent device work opens in same time；Alternatively,
It is shown in the time in a frame, the light modulation stage of every a line luminescent device work is driven successively to open line by line.
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PCT/CN2019/111072 WO2020078326A1 (en) 2018-10-18 2019-10-14 Array substrate, driving method, organic light emitting display panel and display device
US16/650,601 US11462592B2 (en) 2018-10-18 2019-10-14 Array substrate with pixel circuits sharing voltage control circuit, driving method, organic light emitting display panel and display device
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